Finding the Fourth Proportional to 386,068.20, 579,620.70 and 246,445.80
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Solution
The fourth proportional to 386,068.20, 579,620.70 and 246,445.80 is: 369,999.62
Step by Step Solution
- Step 1: Write the proportion equation
386,068.20 : 579,620.70 = 246,445.80 : x - Step 2: Convert to fraction form
386,068.20/579,620.70 = 246,445.80/x - Step 3: Cross multiply
386,068.20x = 579,620.70 × 246,445.80 - Step 4: Simplify right side
386,068.20x = 142,845,087,108.06 - Step 5: Solve for x
x = 142,845,087,108.06/386,068.20 - Step 6: Final answer
x = 369,999.62
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.